Home / 5,009.49-7,508.99-1,720.76

Finding the Fourth Proportional to 5,009.49, 7,508.99 and 1,720.76

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Solution

The fourth proportional to 5,009.49, 7,508.99 and 1,720.76 is: 2,579.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,009.49 : 7,508.99 = 1,720.76 : x
  2. Step 2: Convert to fraction form
    5,009.49/7,508.99 = 1,720.76/x
  3. Step 3: Cross multiply
    5,009.49x = 7,508.99 × 1,720.76
  4. Step 4: Simplify right side
    5,009.49x = 12,921,123.48
  5. Step 5: Solve for x
    x = 12,921,123.48/5,009.49
  6. Step 6: Final answer
    x = 2,579.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.